CVE-2026-72684

mediumpriority · track · 0EPSS 0.004 · 36 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.42% (36th) EPSS

CVSS 6.5 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · security@elastic.coexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770US

affected products (12)

Products and version ranges known to be affected.

Open Source Elasticsearch <8.19.20all versionscert_bundDE
Open Source Elasticsearch <9.4.5all versionscert_bundDE
Open Source Elasticsearch <9.5.1all versionscert_bundDE
Open Source Elasticsearch< 8.19.20cert_bundDE
Open Source Elasticsearch< 9.4.5cert_bundDE
Open Source Elasticsearch< 9.5.1cert_bundDE
Elastic Elasticsearch≤ 9.0.0 ≤9.4.4enisa_euvdEU
Elastic Elasticsearch≤ 8.0.0 ≤8.19.19enisa_euvdEU
elastic elasticsearch8.0.0 → 8.19.20nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.0.0 → 9.4.5nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
Bitnami elasticsearch8.0.0 → 8.19.21osvUSpkg:bitnami/elasticsearch
Bitnami elasticsearch9.0.0 → 9.4.6osvUSpkg:bitnami/elasticsearch

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2841Elasticsearch: Mehrere SchwachstellenDeutsch2026-08-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Elasticsearch ausnutzen, um beliebigen Programmcode auszuführen, und um einen Denial of Service Angriff durchzuführen.
BIT-elasticsearch-2026-72684Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service2026-08-19vendor · osvUS
A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2026-08-13modified 2026-09-01

references (4)

External citations — patches, advisories, analysis.

scry

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